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Polygenesis theory began being "supported by science" (jan 7, 1800 – apr 16, 1940)

Description:

Finally disproven/debunked in early/mid 20th century

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M483 Timeline

ByKathryn Engebretson
19 Sep 2022
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286

Date:

jan 7, 1800
apr 16, 1940
~ 140 years
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